So as it has been discussed elsewhere, a window can be closed by js using window.close() only if it has been opened by a script.
I have a page that offers a button to open a discussion window. The discussion window opens to a new tab with window.open(). The discussion page has a button that calls window.close(), which closes the discussion window and takes you back to previous tab, so you can continue from where you left off.
The problem is that if someone takes a the url directly to the discussion window, the close button does not work.
Is there a way to detect if the window will be closable with window.close(), so I can show the button only if it will work?
You can check to see if window.opener is not null:
When a window is opened from another window, it maintains a reference
to that first window as window.opener. If the current window has no
opener, this method returns NULL. Windows Phone browser does not
support window.opener. It is also not supported in IE if the opener
is in a different security zone.
You can try using the window.opener object, which returns a reference to the window that opened the current window (if it's another window), or NULL if the current window was not opened via JS.
if (window.opener) //Show button
Related
I have a requirement where i want to restrict users from opening url manually from browser. The url should only open from clicking a button which opens a pop window.
Notes:-1.) I cannot temper with button code that's application's standard code
2.) I have already tried window.opener but it does not work in IE.
So basically i want to identify if the opened window is a pop window or normal browser window.
Thanks in advance.
I have a web application where page #1 opens a popup window using
window.open(myUrl, "fixedApplicationTargetId", "");
Then page #2 overwrites the same popup window with a call to window.open using the same target value
window.open(anotherUrl, "fixedApplicationTargetId", "");
At this point the content of the popup originally created by page #1 shows the new content created by page #2. So far so good with any browser.
Then the popup itself detects who last opened the popup and updated the content using window.opener. Prior to calling window.open both page #1 and page #2 create a global variable globalPageId and assign a unique number each. The popup checks the value of window.opener.globalPageId and detects which window last updated the popup content.
This is where things fall apart: the above works fine with chrome and firefox that update window.opener in the popup each time the content is updated with window.open. Instead, IE and opera always point the popup window.opener to the first window that used window.open.
Any suggestion, in a context where multiple pages call window.open on the same target, how to detect from the popup itself which window last opened the window?
window.opener is supposed to be read-write (except in Internet Explorer 3), so you could set it to the appropriate window yourself. Some browsers, however, restrict this operation and only allow setting opener to null to prevent security issues.
An alternate solution would be to use a custom property instead of opener. You could set it by hand:
window.open(myUrl, "fixedApplicationTargetId", "").realOpener = window;
Then use window.realOpener.globalPageId instead of window.opener.globalPageId in the rest of your code.
I've got a page which open a new window fullscreen but it still has the other page (the one which re-directs) behind so when you close the new window you are taken back to a blank page.
Is there a way to open a new window and then close the tab which is now inactive?
Currently I have some javascript like this
window.open("http://website.co.uk");
Thanks
You can technically use window.close() on the opening tab, but browsers usually will not allow JavaScript to close windows that it has not opened. Can you redirect to some useful page that the user can use once they have closed the window?
If you can add some JavaScript code to the page being opened, I think you can use window.opener.close() to close the original window. I tested it in IE8, the browser will ask for confirm before close the original window.
Anyone knows the difference?
The problem I met is that the page stops working correctly when opened by window.showModalDialog
window.showModalDialog vs window.open
Window.open will open up a new window through Javascript, with the URL and other features of the window that u pass as parameters. Here the parent window which opens the new window and the child window are independent windows.
Eg. Below
`window.open('winOpen.htm','name','height=255,width=250,toolbar=no,directories=no,status=no,
linemenubar=no,scrollbars=no,resizable=no');`
Window.showModalDialogue again works smilar to a window.open only diffrence being its a Modal window, It opens up as a new window but doesnt allow the user to access the parent window, unless you explicitly close it.
Here the child window is dependent on the parent window. If you close the parent window the child would also get closed.
window.showModalDialog("xpopupex.htm","name","dialogWidth:255px;dialogHeight:250px");
ShowModalDialogue windows can be used when u want the user to perform a particular action in the new window before he access the parent window again. like login before he can access the parent page..
tryed to make it as simple as possible...hope this help.. ;)
Using JavaScript I open the pop window and parent window is inactive at this time,
I wanted to active parentwindow through popwindow. (this is a web project on Java)
You can usually window.opener in JavaScript to get at the window that opened at popup.